867169985 has 8 divisors (see below), whose sum is σ = 1135204416. Its totient is φ = 630669040.

The previous prime is 867169981. The next prime is 867169997. The reversal of 867169985 is 589961768.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 867169985 - 2² = 867169981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (867169981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7883309 + ... + 7883418.

It is an arithmetic number, because the mean of its divisors is an integer number (141900552).

Almost surely, 2^867169985 is an apocalyptic number.

It is an amenable number.

867169985 is a deficient number, since it is larger than the sum of its proper divisors (268034431).

867169985 is a wasteful number, since it uses less digits than its factorization.

867169985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15766743.

The product of its digits is 6531840, while the sum is 59.

The square root of 867169985 is about 29447.7500838349. The cubic root of 867169985 is about 953.6040330132.

The spelling of 867169985 in words is "eight hundred sixty-seven million, one hundred sixty-nine thousand, nine hundred eighty-five".